1. The men of the Gowanusim believe in killing and death. They murder for sport and to prove themselves; they revel in it. Their war canoes are big and always well-crewed, and skim up and down the river like swimming pythons. The other tribes fear their men and hate them, and kill them in revenge where they can; everybody on the lower Sunset River has a feud with some man or other of the Gowanusim. They paint their faces red, with white tears running in streaks from their eyes, and wear necklaces of river oysters and blue feathered head dresses.
In the Gowanusim's village lives Ndam, the oldest woman in the lower Sunset River. The knowledge she holds in her head about people, places and beasts of the area could fill a frigate.
Men of the Gowanusim have an extra +1 AB and +1 hp; they are always aggressive (-4 to reaction dice rolls).
2. The Wawtua inhabit a swamp infested with venomous snakes and nests of young crocodiles; adults walk everywhere on stilts that are 18 inches high; the Wawtua are agile like colourful swamp-dwelling mountain goats. They paint their faces in a checked pattern of black, yellow, red and white, and wear head dresses of long green bird of paradise tail feathers which add an extra two feet to their height. Together with their stilts, this means the Wawtua can appear nine feet high.
The Wawtua have a poison expert dwelling among them, who uses the snakes of the swamp to craft specific toxins to kill any kind of living thing. She is only referred to as Fingers: she long ago cut away the skin of her fingertips and replaced them with finely polished bone, so that she does not accidentally stab herself with her darts and needles.
The Wawtua move 50% faster than ordinary humans and have +1 AB when using ranged weapons.
3. The Yayiwo keep bower birds; or, perhaps more accurately, bower birds keep the Yayiwo. These bower birds are of a certain variety found nowhere else; they are black and nondescript, save for their vivid purple bills. The bower birds give every appearance of ruling the Yayiwo and issue them a wide variety of chirps to signal their need for food, water, or luxuries. In return, the Yayiwo appear to gain little except for the fact that these birds act as scouts and sentinels in the forest.
The Yayiwo's witch doctor is the most puissant in the lower Sunset River. He can cure diseases and certain poisons - if the supplicant proves that he or she has spirit.
The Yayiwo coat themselves head to foot in pale brown dried mud, and cover their heads in leering face masks made from clay.
4. The Amlablak are a small tribe who expand their numbers through marriage rather than breeding. Their men and women have sex, but suppress pregnancy through the use of various herbs and toxins. Numbers expand by marrying in outsiders, who adopt new names and body decorations when they do so. They paint their faces bright yellow and jab quills through their nose and ears; their head dresses are black, blue and red.
A great seer known as Kimiagham lives with the Amlablak. Some say that he married an Amlablak woman of extraordinary beauty and hence joined the tribe; others say he founded it. In any event, his vision exists beyond and behind space and time; he can see even into the minds and memories of others, into the distant past, the far future, and potential futures and pasts which were or will always be unrealised.
The Amlablak do not trade or interact with outsiders unless they marry into the tribe.